#include <iostream>
#include <conio.h>
#include <string>
using namespace std;
int main()
{
    int N;
  cout << "C" << endl;
  cout << "vvedi N:";
  cin >> N;
  switch (N)
  {
  case 1:
      cout << "Z";
      break;
  case -1:
      cout << "V";
      break;
  case 0:
      cout << "C";
      break;

 }
  getch();
  return 0;
}
